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<p>[QUOTE=&quot;Conder101, post: 2929386, member: 66&quot;]Yes the blanks are heated to anneal them.&nbsp; THEN they are washed and dried.&nbsp; When they enter the coining press they are cold (room temperature) they are NOT struck while they are hot.&nbsp; And at the relatively low temperatures that can be achieved during the striking (possibly as much as a couple hundred degrees) no chemical change takes place.&nbsp; No chemical change takes place during the annealing either other than oxidation on the surface of the blanks. (which is removed through chemial and physical processes during the washing.)&nbsp; The softening that comes about from the annealing is a mechanical process not a chemical one.&nbsp; The work hardening that takes place during the rolling, blanking, and upsetting is also a mechanical process not a chemical one.</p><p><br /></p><p><br /></p><p>OK that&#039;s the problem a miss use of terms.&nbsp; Yes the heating does result in a rearranging of the molecules and the bonds between them that&#039;s a mechanical rearranging not a chemical one.&nbsp; Only their physical placement has changed.[/QUOTE]</p><p><br /></p>

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